Don't stick to titles by the same author or within the same genre. Don't judge a book by its cover—or the blurbs on the back—read the flap!
The best lighting is not too dim or too bright. Avoid fluorescent lighting or direct sunshine. I wouldn't spend a lot of money on a fancy reading light. I use a gooseneck lamp next to my bed and a floor lamp in the living room.
Make a designated time for reading every day: Find a comfortable space, away from distractions of people and noise and daily pressures. There's evidence that reading lowers your blood pressure, and that reduces stress."